LTC4081EDD View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC4081EDD

500mA Li-Ion Charger with NTC Input and 300mA Synchronous Buck

Linear Technology 

LTC4081

ABSOLUTE AXI U RATI GS

(Note 1)

VCC, t < 1ms and Duty Cycle < 1%.............. – 0.3V to 7V

VCC Steady State ......................................... – 0.3V to 6V

BAT, ⎯C⎯H⎯R⎯G .................................................. – 0.3V to 6V

⎯E⎯N⎯_⎯C⎯H⎯R⎯G, PROG, NTC ...................– 0.3V to VCC + 0.3V

MODE, EN_BUCK .......................... – 0.3V to VBAT + 0.3V

FB ............................................................... – 0.3V to 2V

BAT Short-Circuit Duration............................Continuous

BAT Pin Current ...................................................800mA

PROG Pin Current ....................................................2mA

Junction Temperature .......................................... .125°C

Operating Temperature Range (Note 2) .. – 40°C to 85°C

Storage Temperature Range.................. – 65°C to 125°C

PIN CONFIGURATION

TOP VIEW

BAT 1

10 SW

VCC 2

9 EN_BUCK

EN_CHRG 3

11

8 MODE

PROG 4

7 FB

NTC 5

6 CHRG

DD PACKAGE

10-LEAD (3mm × 3mm) PLASTIC DFN

TJMAX = 110°C, θJA = 43°C/W (NOTE 3)

EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

LTC4081EDD#PBF

LTC4081EDD#TRPBF LDBX

10-Lead (3mm × 3mm) DFN

Consult LTC Marketing for parts specified with wider operating temperature ranges.

Consult LTC Marketing for information on non-standard lead based finish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/

TEMPERATURE RANGE

0°C to 70°C

ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating tempera-

ture range, otherwise specifications are at TA = 25°C, VCC = 5V, VBAT = 3.8V, V⎯E⎯N⎯_⎯C⎯H⎯R⎯G = 0V, VNTC = 0V, VEN_BUCK = VBAT, VMODE = 0V.

(Note 2)

SYMBOL

VCC

VBAT

ICC

ICC_SD

PARAMETER

CONDITIONS

MIN

TYP

MAX UNITS

Battery Charger Supply Voltage

(Note 4)

● 3.75

5

5.5

V

Input Voltage for the Switching

Regulator

(Note 5)

● 2.7

3.8

4.5

V

Quiescent Supply Current (Charger On, VBAT = 4.5V (Forces IBAT and IPROG = 0),

●

Switching Regulator Off)

VEN_BUCK = 0

Supply Current in Shutdown (Both

Battery Charger and Switching

Regulator Off)

V⎯E⎯N⎯_⎯C⎯H⎯R⎯G = 5V, VEN_BUCK = 0, VCC > VBAT

●

V⎯E⎯N⎯_⎯C⎯H⎯R⎯G = 4V, VEN_BUCK = 0, VCC (3.5V) <

VBAT (4V)

110

300

μA

5

10

μA

2

μA

4081f

2

Share Link: